+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   3798 de Jager (2402 T-3) Classification: Main-belt Asteroid          SPK-ID: 2003798 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253388 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0771441 n/a   a 2.1684905 n/a AU q 2.0012043 n/a AU i 2.43088 n/a deg node 314.46408 n/a deg peri 244.61146 n/a deg M 227.46695 n/a deg tp 2456829.8944291 (2014-Jun-21.39442910) n/a JED period 1166.3656309 3.19 n/a n/a d yr n 0.30865107 n/a deg/d Q 2.3357767 n/a AU   Orbit Determination Parameters    # obs. used (total)      1030      first obs. used      1950-??-??      last obs. used      2013-02-06      # oppositions      17      planetary ephem.      DE403      condition code      0      fit RMS      0.52      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.686  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.6 mag n/a PDS3 (MPC 28110)   3798 de Jager (2402 T-3)          Discovered 1977-Oct-16 by van Houten-Groeneveld, I. at Palomar (675) Discovered in the course of the Third Trojan Survey by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  2402 T-3 = 1950 BY = 1982 BO1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-20 00:49 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin